back to article We've seen things you people wouldn't believe. A planet, dense as a marshmallow, that would float on water

Located 580 light-years away from Earth in the constellation of Auriga the Charioteer, there lies an extra fluffy exoplanet with an average density similar to a marshmallow, light enough to float on water.  The planet, code-named TOI-3757 b, is the lowest-density planet found around a red dwarf star yet, according to a study …

  1. Michael Hoffmann Silver badge

    Dibs on naming rights!

    I hope they name it... Gozer (the Gozerian)

    1. b0llchit Silver badge

      Re: Dibs on naming rights!

      Choose your form!


      It has been decided.

    2. kmckaig

      Re: Dibs on naming rights!


  2. This post has been deleted by its author

  3. Aladdin Sane

    Isn't Saturn a massive floater?

    1. that one in the corner Silver badge

      Saturn (and this new one) being mostly gas, with a small solid in the middle, more of a fart in the bathtub.

      Gravity - Nature's bubblebath.

  4. that one in the corner Silver badge

    Where did you get that bathtub?

    I don't believe these tales that someone has a bathtub big enough to float planets in. You'd never get the whole tub down a Hyperspace bypass, even with flashing yellow lights.

    My theory is that this "tub" is an big rubber pool, pink, that gets rolled up and sent lengthways. Sewing this together caused the shortage of Ningis that prevented anyone else from having an entire Triganic Pu. Leading to the inevitable crash of the Galactibanks once the Altarian Dollar tanked following that disastrous "mini-budget" the week before the Presidency became vacant.

    1. The Oncoming Scorn Silver badge
      Thumb Up

      Re: Where did you get that bathtub?

      I see the Magratheans are keeping to their usual high standards of bespoke planets.

      1. Gort99

        Re: Where did you get that bathtub?

        Damn it! You bet me to it. Still waiting on that solid gold planet.

  5. TimMaher Silver badge
    Thumb Up

    Blade Runner

    Nice reference guys.

    The original was a beautiful speech.

    1. sitta_europea Silver badge

      Re: Blade Runner

      "...The original was a beautiful speech."


      BTW when astronomers talk about metals, they generally mean anything with more protons than helium.

      Just sayin'.

      1. Bartholomew Bronze badge

        Re: Blade Runner

        > when astronomers talk about metals, they generally mean anything with more protons than helium.

        The properties of Hydrogen have led to the conjecture that it is probably a metal (when solid). We as a species have not created a high enough pressure and a low enough temperature for it to form (yet). The guess is that from the phase transition to happen would require millions of standard atmospheres of pressure. We do not have any materials that could withstand the immense pressures required for it to form. Look where it is in the periodic table, the solids of all elements in its section (Hydrogen & alkali metals) are all metals.

  6. Sceptic Tank Silver badge

    Hmm, Hmm, Hmm

    Can we point JWST at it to see if that marshmallow roasting over the open flames is on a stick?

  7. Anonymous Coward
    Anonymous Coward

    Reminds me of the Algebraist, by Iain M Banks. Where better to hide a wormhole to cross vast tracts of space than in the middle of a marshmallow?

  8. Jan 0 Silver badge


    I guess that you can estimate it's mass from perturbations in orbits of it and other objects, but how do you get a calibrated mass in orbit around that star in the first place? Or is there another method for estimating mass?

    1. Claptrap314 Silver badge

      Re: Mass?

      It perturbs the start it's orbiting as well...

  9. jamesdagger

    It is pink

    It has yellow dots

    It is planet Blobby

  10. Gordon 10

    Disappointed to find out we haven’t found the the Tannhäuser Gate yet.

  11. aerogems Silver badge

    I feel like there's a joke here

    Comparing it to the number of irradiated haggises on the Red Dwarf.

  12. I am David Jones

    Until I see the planet actually floating in water, I refuse to believe your so-called ‘science’!

    1. Paul Johnston

      Nominative determinism

      Guess you believe it will sink and end up in your locker.

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